Ran the hardware version. Extremely smooth even though I'm running it on my work laptop. I like the physics even though the car might be a bit too agile, there is no feel of weight in it.

I've made some test with a more realistic setting for physic (higher gravity center for the car and stronger gravity) but it was not that fun for example it is impossiple to reach the top of the ramp cause the car would fall back before reaching it, also you cannot turn at high speed because car would "roll over", so the non-realistic physic is wanted to make the game more fun as with something more realistic it become fastly boring.

suprisingly I found that the hardware version did not ask anymore for a the certificat, no securoity popup , did you get one if no this may be a big security hole in the lastest JVM release, but I guess I have this certificat somewhere in my computer.... but let me know if you got a security popup please ?